I have been testing this for the past month and I can't say enough positive things about it. It heats up so quickly, and cooks your food super fast. It made delicious chicken wings and fries! It's also very user friendly. I was very skeptical about its "roast" feature, because it is a smaller air fryer. Don't let the size fool you! It holds so much. More than enough for my family of 4. I've made roasted chicken and roasted pork loin and everything comes out perfectly. It's easy to clean (anything left on the pan just wipes right off), runs fairly quietly, and doesn't put off a lot of heat. Because it is Ninja Brand, I expect it to last a good while. 
I received this product in exchange for my honest opinions and review.